Metal oxide-promoted mesoporous silica as support for Ru-based
CO2 methanation catalysts

J 2026

Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts

HONGMANOROM, Plaifa; Aurelien NERAUD; Aleš STÝSKALÍK; Wanwisa LIMPHIRAT; Piyasan PRASERTHDAM et al.

Základní údaje

Originální název

Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts

Autoři

HONGMANOROM, Plaifa; Aurelien NERAUD; Aleš STÝSKALÍK; Wanwisa LIMPHIRAT; Piyasan PRASERTHDAM a Damien P. DEBECKER

Vydání

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY, AMSTERDAM, ELSEVIER, 2026, 0926-3373

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10402 Inorganic and nuclear chemistry

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 21.100 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Mesoporous silica; Vanadium; Ruthenium; CO 2 methanation; Metal oxide promoter

Štítky

14313010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 10. 2. 2026 11:01, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

Transition metals are widely employed to promote heterogeneous catalysts, yet their effects on Ru-based CO2 methanation remain unclear. Herein, mesoporous silica supports promoted with Ti, Zr, Nb, or V were synthesized via an aerosol-assisted sol-gel process to systematically compare their effects. With fixed promoter (4 mol%) and Ru (2 wt%) loadings, vanadia exhibits a unique promoting effect, attributed to Ru-V synergy that facilitates hydrogen spillover and generates oxygen vacancies. Increasing V loading to 16 mol% markedly reduces specific surface area and induces macropore formation due to V2O5 crystallization, yet significantly enhances activity, with CH4 formation at 250 degrees C 8 times higher than unpromoted Ru/SiO2. This improvement is rationalized by improved Ru dispersion and hydrogen spillover from Ru to adjacent V species. In-situ DRUV-Vis and XANES analyses reveal V5 + reduction to lower oxidation states and oxygen-vacancy generation, while in-situ DRIFTS shows modified CO adsorption, thereby promoting methanation via the CO pathway.

Návaznosti

EF18_046/0015974, projekt VaV

Název: Modernizace České infrastruktury pro integrativní strukturní biologii

90042, velká výzkumná infrastruktura

Název: CESNET II

Citovat

HONGMANOROM, Plaifa; Aurelien NERAUD; Aleš STÝSKALÍK; Wanwisa LIMPHIRAT; Piyasan PRASERTHDAM a Damien P. DEBECKER. Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts. APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY. AMSTERDAM: ELSEVIER, 2026, roč. 384, MAY, s. 1-11. ISSN 0926-3373. Dostupné z: https://doi.org/10.1016/j.apcatb.2025.126142.

@article{2553762,
   author = {Hongmanorom, Plaifa and Neraud, Aurelien and Stýskalík, Aleš and Limphirat, Wanwisa and Praserthdam, Piyasan and Debecker, Damien P.},
   article_location = {AMSTERDAM},
   article_number = {MAY},
   doi = {https://doi.org/10.1016/j.apcatb.2025.126142},
   keywords = {Mesoporous silica; Vanadium; Ruthenium; CO 2 methanation; Metal oxide promoter},
   language = {eng},
   issn = {0926-3373},
   journal = {APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY},
   title = {Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts},
   url = {https://www.sciencedirect.com/science/article/pii/S0926337325011257},
   volume = {384},
   year = {2026}
}

TY  - JOUR
ID  - 2553762
AU  - Hongmanorom, Plaifa - Neraud, Aurelien - Stýskalík, Aleš - Limphirat, Wanwisa - Praserthdam, Piyasan - Debecker, Damien P.
PY  - 2026
TI  - Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts
JF  - APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
VL  - 384
IS  - MAY
SP  - 1-11
EP  - 1-11
PB  - ELSEVIER
SN  - 09263373
KW  - Mesoporous silica
KW  - Vanadium
KW  - Ruthenium
KW  - CO 2 methanation
KW  - Metal oxide promoter
UR  - https://www.sciencedirect.com/science/article/pii/S0926337325011257
N2  - Transition metals are widely employed to promote heterogeneous catalysts, yet their effects on Ru-based CO2 methanation remain unclear. Herein, mesoporous silica supports promoted with Ti, Zr, Nb, or V were synthesized via an aerosol-assisted sol-gel process to systematically compare their effects. With fixed promoter (4 mol%) and Ru (2 wt%) loadings, vanadia exhibits a unique promoting effect, attributed to Ru-V synergy that facilitates hydrogen spillover and generates oxygen vacancies. Increasing V loading to 16 mol% markedly reduces specific surface area and induces macropore formation due to V2O5 crystallization, yet significantly enhances activity, with CH4 formation at 250 degrees C 8 times higher than unpromoted Ru/SiO2. This improvement is rationalized by improved Ru dispersion and hydrogen spillover from Ru to adjacent V species. In-situ DRUV-Vis and XANES analyses reveal V5 + reduction to lower oxidation states and oxygen-vacancy generation, while in-situ DRIFTS shows modified CO adsorption, thereby promoting methanation via the CO pathway.
ER  -

HONGMANOROM, Plaifa; Aurelien NERAUD; Aleš STÝSKALÍK; Wanwisa LIMPHIRAT; Piyasan PRASERTHDAM a Damien P. DEBECKER. Metal oxide-promoted mesoporous silica as support for Ru-based CO2 methanation catalysts. \textit{APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY}. AMSTERDAM: ELSEVIER, 2026, roč.~384, MAY, s.~1-11. ISSN~0926-3373. Dostupné z: https://doi.org/10.1016/j.apcatb.2025.126142.

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